Answer
$$y-14,300=-1600(x-4)$$
Work Step by Step
We know that the point slope equation is:
$$y_2-y_1=m(x_2-x_1)$$
We first find m:
$$\frac{y_2-y_1}{x_2-x_1}$$
$$m\frac{14,300-17,500}{4-2}$$
$$m = -1600$$
Now, we use point slope form to find:
$$y-14,300=-1600(x-4)$$